Re: [gtk-osx-users] gtk2 failing to build + no pangoft2

[John Ralls <jralls ceridwen us>]

> On Jan 11, 2020, at 1:39 PM, David Cooke <djcooke wintree plus com> wrote:
>
> Hi,
>  
> I am trying to build, using Gtk-OSX under High Sierra, a gtk2 program which has previously been built 
> successfully using Gtk-OSX on an earlier macOS installation and currently builds OK on Fedora 29.  Although 
> I have used Gtk-OSX before, that was some time ago.
>  
> Initially I successfully ran ./gtk-osx-setup.sh, jhbuild bootstrap-gtk-osx and jhbuild build 
> meta-gtk-osx-bootstrap meta-gtk-osx-gtk3; then jhbuild build meta-gtk-osx-core, also successful, and 
> subsequently jhbuild build meta-gtk-osx-freetype – under the impression that freetype and fontconfig had 
> not been installed.
>  
> Attempting to build the program, it failed on missing pango headers, notably pangofc-font.h.
>  
> In the attempt to get pangoft2 installed I have tried jhbuild build –f pango, tried adding lines to 
> jhbuildrc-custom such as module_mesonargs[“pango”]=”use_fontconfig=true”, and finally ran: jhbuild build –f 
> meta-gtk-osx-bootstrap meta-gtk-osx-freetype meta-gtk-osx-core.
>  
> The outcome is that pangoft2 has still not been installed – even though pango has been reinstalled - and 
> gtk2 has now failed to build, reporting errors for gtkaliasdef.c, aliases not supported on darwin.
>  
> Any advice on how best to recover from this situation and how to get pangoft2 installed would be 
> appreciated.  Inspection of the pango package suggests pangoft2 will not be built on macOS unless the 
> option ”use_fontconfig=true” is supplied.

If your program uses gtk2 then you want meta-gtk-osx, not meta-gtk-osx-gtk3. 

You have to build freetype before pango if you want pangoft2. The easy way to make that happen is to tell 
unbuild everything you need all at once:
  jhbuild build meta-gtk-osx-bootstrap meta-gtk-osx meta-gtk-osx-freetype
So that it can see everything you want and put it in the right order.

To recover without starting over you can run
  jhbuild buildone -f pango
and since you probably need cairoft2 as well
  jhbuild buildone -f cairo

Configure will notice that freetype2 is now available and build the extra libraries.

Regards,
John Ralls